Related Clues:
- Creature that moves by jet propulsion
- Sea creature — literary submarine
- 'Pearly' mollusc
- Nemo's sub (Verne)
- A gastropod
- Tin - usual material for construction of submarine?
- Edible gastropod served up by Italian sous-chef
- Pearly mollusc
- Nobody could identify the captain of this submarine
- Not one of the fleet put to sea without leader of navy
- Cephalopod mollusc
- Slow mollusc
- Garden mollusc
- Spiral-shelled mollusc
- Slow-moving mollusc